<?php

/**
 * Created by PhpStorm.
 * User: bill-h
 * Date: 2021/10/8
 * Time: 16:53
 * Email: 391878487@qq.com
 */
namespace app\http\middleware;

use app\Request;
use interfaces\MiddlewareInterface;
use think\facade\Config;
use think\Response;

    /**
     * 跨域中间件
     * Class AllowOriginMiddleware
     * @package app\http\middleware
     */
class AllowOriginMiddleware implements MiddlewareInterface
{

    /**
     * 允许跨域的域名
     * @var string
     */
    protected $cookieDomain;

    /**
     * @param Request $request
     * @param \Closure $next
     * @return Response
     */
    public function handle(Request $request, \Closure $next)
    {
        $this->cookieDomain = Config::get('cookie.domain', '');
        $header = Config::get('cookie.header');
        $origin = $request->header('origin');

        if ($origin && ('' == $this->cookieDomain || strpos($origin, $this->cookieDomain)))
            $header['Access-Control-Allow-Origin'] = $origin;
        if ($request->method(true) == 'OPTIONS') {
            $response = Response::create('ok')->code(200)->header($header);
        } else {
            $response = $next($request)->header($header);
        }
        $request->filter(['strip_tags', 'addslashes', 'trim']);
        return $response;
    }
}
